WaterSIC: information-theoretically (near) optimal linear layer quantization

This paper introduces WaterSIC, a novel linear layer quantization algorithm that achieves information-theoretically near-optimal performance by allocating different quantization rates to weight columns via a waterfilling strategy, thereby significantly outperforming existing methods like GPTQ and establishing new state-of-the-art results for LLMs across 1 to 4-bit quantization rates.

Egor Lifar, Semyon Savkin, Or Ordentlich + 1 more2026-03-06🔢 math

Mixture of Universal Experts: Scaling Virtual Width via Depth-Width Transformation

The paper introduces Mixture of Universal Experts (MOUE), a novel Mixture-of-Experts architecture that scales model capacity by converting depth into "virtual width" through a universal expert pool shared across layers, utilizing a staggered rotational topology and specialized routing mechanisms to overcome scalability limits and outperform traditional MoE baselines.

Yilong Chen, Naibin Gu, Junyuan Shang + 8 more2026-03-06🤖 cs.AI

Competitive Multi-Operator Reinforcement Learning for Joint Pricing and Fleet Rebalancing in AMoD Systems

This paper introduces a multi-operator reinforcement learning framework that integrates discrete choice theory to model competitive dynamics in Autonomous Mobility-on-Demand systems, demonstrating that competition fundamentally alters learned pricing and fleet rebalancing strategies compared to monopolistic settings while maintaining robust convergence.

Emil Kragh Toft, Carolin Schmidt, Daniele Gammelli + 1 more2026-03-06🤖 cs.LG

Measuring the Fragility of Trust: Devising Credibility Index via Explanation Stability (CIES) for Business Decision Support Systems

This paper introduces the Credibility Index via Explanation Stability (CIES), a mathematically grounded metric that quantifies the robustness of AI explanations under realistic business data perturbations, demonstrating its superior ability to assess model reliability and guide decision-making across various high-stakes scenarios compared to existing baselines.

Alin-Gabriel Vaduva, Simona-Vasilica Oprea, Adela Bara2026-03-06🤖 cs.AI

Deep Learning-Driven Friendly Jamming for Secure Multicarrier ISAC Under Channel Uncertainty

This paper proposes a deep learning-driven framework for secure multicarrier ISAC systems that utilizes radar echo feedback and a novel nonparametric Fisher Information Matrix estimator to optimize directional friendly jamming and beamforming under channel uncertainty and unknown eavesdropper locations, while employing a quantized tensor train encoder for efficient implementation.

Bui Minh Tuan, Van-Dinh Nguyen, Diep N. Nguyen + 5 more2026-03-06🤖 cs.LG